Name: Pytes V5
Brand: Pytes
Price: 1450.00 USD

4.4/5#6 of 16 in server rack 48V batteries
4.4

A fully UL-listed, heated 5 kWh rack module for permitted home installs. It’s worth the premium when your inspector wants UL 9540.

5.1 kWhCapacity
100 AOutput
6,000Cycles
YesUL 9540A
10 yearsWarranty

Check price at Signature Solar$1,450

Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.

Newer model: the Pytes V5α Plus replaces this one (rated 4.1, #8 server rack). See every Pytes generation.

Older model: this replaces the Pytes E-Box 48100R (rated 3.7). See every Pytes generation.

Pros

UL 9540, UL 9540A and UL 1973 listed, so it passes most permit reviews
Built-in heating film lets it charge in cold spaces
100 A continuous gives one module a full 5 kW
Pytes publishes tested setups for a long list of inverters

Cons

App monitoring costs extra (Wi-Fi dongle)
Costs a few hundred dollars more than unlisted rack modules of the same size

How it scores

The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its case. How we rank explains each one.

Value $283 per rated kWh70
Output 100 A continuous (about 5.1 kW)100
Warranty 10-year warranty100
Safety listing UL 1973, UL 9540 listed100
Cycle life 6,000 cycles at 90% depth, maker rating60
Features inverter communication, self-heating; no app70

Specifications

Capacity
Model number	V5°
Case	Server rack (19-inch)
Nominal voltage	51.2 V
Capacity	100 Ah
Energy	5.1 kWh
Chemistry	LiFePO4
Cycle life	6,000 at 90% depth
Power
Continuous discharge	100 A
Peak discharge	180 A
Max charge current	100 A
Modules in parallel	Up to 96
Safety and communication
UL 1973	Yes
UL 9540A	Yes
UL 9540	Yes
Communication	CAN, RS485
Works with inverters	Victron, Sol-Ark, EG4, LuxPower, Growatt, Deye, SMA, Solis, Studer, Voltronic
Self-heating	Yes
App	No
Build
Dimensions	17.4 x 20.9 x 5.5 in (3.2U)
Weight	97 lb
Warranty	10 years
Released	2022-09

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